Alaina Castillo

Alaina Castillo is an American singer-songwriter born November 16, 1999, and raised in Houston, Texas. She built her early following by posting cover songs on YouTube, where her voice and intimate, bedroom-pop production style attracted hundreds of thousands of subscribers before she pivoted to original material. Her sound blends soft R&B textures, dreamy pop melodies, and hints of Latin and country influence, often exploring themes of heartbreak, self-doubt, and quiet resilience in a hushed, conversational vocal style.

Castillo released her debut single «i don’t think i love you anymore» in 2019, which introduced the intimate, lo-fi aesthetic that defined her debut EP, antisocial butterfly. She followed with the EPs the voicenotes and the Spanish-language mensajes de voz, showing her bilingual range with songs like «no vuelvas a mirar atrás» and «mentiras». Songs such as «just a boy» and «pocket locket» helped grow her streaming audience significantly, showcasing her knack for airy, melodic hooks paired with vulnerable lyricism.

Her debut album parallel universe, pt. 1 arrived with singles «stfu (i got u)» and «indica», further cementing her identity as an artist who moves fluidly between English and Spanish-language pop. She has continued releasing new music exploring more assertive, self-assured songwriting, including «sad girl» and «papacito», maintaining her position as one of the notable voices to emerge from the YouTube-cover-to-recording-artist pipeline.